ADC Practice Question — Replantation Protocols — Closed & Open Apex

tooth was replanted in a slightly rotated position.…

Dental trauma questions test protocol-level decisions — splint type, duration, follow-up timing — where one wrong detail means a wrong answer. This exam-level vignette tests your ability to work through clinical details and arrive at the correct management.

A 15-year-old boy's upper central incisor (closed apex) was replanted by his coach at the sports field within 5 minutes of avulsion. He presents to the dental clinic 30 minutes later with the tooth in situ but slightly rotated. The tooth was replanted in a slightly rotated position. What is the time limit for repositioning?

A. Repositioning should occur immediately — any delay beyond the first hour risks ankylosis
B. Repositioning is contraindicated once a tooth has been replanted at the accident scene
C. Repositioning can be considered for up to 48 hours after the original traumatic incident
D. Repositioning is only appropriate if radiographs confirm no root fracture has occurred

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Sources cited

Therapeutic Guidelines v4 Odell's 3rd & 4th Ed IADT 2020 Code of Conduct CMS (Evans) Infection Control + more

Show the answer and cited explanation

Correct answer: C

IADT closed apex, replanted at site: 'If the tooth or teeth were replanted in the wrong socket or rotated, consider repositioning the tooth/teeth into the proper location up to 48 hours after the traumatic incident.' SOURCE — Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 3.1.1, item 5

Source: Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 3.1.1

Remy's study tip — Trauma questions hinge on: tooth maturity (open vs closed apex), time out of mouth, storage medium, and fracture type.

Exam preparation FAQ

How are Replantation Protocols — Closed & Open Apex questions structured in the ADC written exam?

ADC Replantation Protocols — Closed & Open Apex questions present as clinical vignettes requiring management decisions. The correct answer is always traceable to a guideline source.

Should I memorise guidelines word-for-word for Replantation Protocols — Closed & Open Apex?

Focus on decision points — when the guideline says X vs Y. The exam tests application, not recitation.

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